Oh, the wing beacon can be used for many a useful little things that some may call exploit.
- Relay trading. Once set up with a full wing, there's no need to Super-Cruise anywhere. Thus avoiding all dangers that may lurk in between the planets.
- Ambush tactics. Three of four jump into a system, enter normal space at once. Then the 'goat' enters, make himself look pretty and tasty whilst Super-Cruising leisurely along. When the goat gets interdicted (and submits), a wingman-beacon is dropped, and five seconds later the wannabee pirate gets a nasty surprise.
Sorry I did not understand the relay trading thingy, could you be more specific please?
Anyway I don't see how ambush is an exploit. Wing beacons are designed to make wing members able to find each other. It does not specify "why" they want to do so. And yeah ambush is actually a very cool thing allowed by wing in my opinion